ht827a0 Holtek Semiconductor Inc., ht827a0 Datasheet - Page 47

• Manufacturer Part Number: ht827a0
• Description: 8-bit Microcontroller With Voice Rom
• Manufacturer: Holtek Semiconductor Inc.

SZ [m].i
Description
Operation
Affected flag(s)
TABRDC [m]
Description
Operation
Affected flag(s)
TABRDL [m]
Description
Operation
Affected flag(s)
XOR A,[m]
Description
Operation
Affected flag(s)
Skip if bit ²i² of the data memory is zero
If bit ²i² of the specified data memory is zero, the following instruction,
fetched during the current instruction execution, is discarded and a dummy
cycle is replaced to get a proper instruction. This is a 2-cycle instruction. Oth-
erwise proceed to the next instruction.
Skip if [m].i=0
Move ROM code (current page) to TBLH and to the data memory
The low byte of the ROM code (current page) addressed by the table pointer
(TBLP) is moved to the specified data memory and the high byte is trans-
ferred to TBLH directly.
[m] ¬ ROM code (low byte)
TBLH ¬ ROM code (high byte)
Move ROM code (last page) to TBLH and to the data memory
The low byte of the ROM code (last page) addressed by the table pointer
(TBLP) is moved to the data memory and the high byte is transferred to
TBLH directly.
[m] ¬ ROM code (low byte)
TBLH ¬ ROM code (high byte)
Logical XOR accumulator with data memory
Data in the accumulator and indicated data memory perform a bitwise logi-
cal Exclusive_OR operation and the result is stored in the accumulator.
ACC ¬ ACC ²XOR² [m]
TC2
TC2
TC2
TC2
¾
¾
¾
¾
TC1
TC1
TC1
TC1
¾
¾
¾
¾
TO
TO
TO
TO
¾
¾
¾
¾
PD
PD
PD
PD
¾
¾
¾
¾
47
OV
OV
OV
OV
¾
¾
¾
¾
¾
¾
¾
Z
Z
Z
Z
Ö
AC
AC
AC
AC
¾
¾
¾
¾
¾
¾
¾
¾
C
C
C
C
March 15, 2000
HT827A0